AMC 2026 catalogue

Motors

NEMA Guidelines

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1-888-602-0000 MOTORS

IEC (International Electrotechnical Commission) ENCLOSURES

▪IEC uses numbers to denote a

particular enclosure type ▪The numbers follow the letters IP (Ingress

Protection) in the motor description ▪The first digit signifies, on a rating scale, how

well-protected the motor is against entry of solid objects such as dust, wire, tools, or fingers ▪The second digit signifies, on a rating scale, the

motor's ability to protect against water entry

IEC FLANGE MOUNT MOTOR DIMENSIONS (mm)

Frame

Large Flange (B5) D-Flange Small Flange (B14) C-Face HB LA M N P S T HB LA M N P S T 63 * 108 7 115 95 140 10 3 68 7 75 60 90 M5 2.5 63 108 7 130 110 160 10 3.5 — — — — — — — 71 120 7 130 110 160 10 3.5 120 9 85 70 105 M6 2.5 80 126 12 165 130 200 12 3.5 126 9 100 80 120 M6 3 90S 139 12 165 130 200 12 3.5 139 9 115 95 140 M8 3 90L 139 12 165 130 200 12 3.5 139 9 115 95 140 M8 3 100L 170 11 215 180 250 15 4 170 14 130 110 160 M8 3.5 112 188 12 215 180 250 15 4 188 14 130 110 160 M8 3.5 132 213 12 265 230 300 15 4 215 14 165 130 200 M10 3.5 * M2AA63 can be supplied with shaft extension D=11, E=23, F=4, and GA=125mm, and DB=M4, if flange M=115mm.

IEC and NEMA DIMENSIONS AND FRAME COMPARISONS (mm) (IEC) NEMA

(H)

(A)

(B)

(K)

(D)

(E) N-W (56) † 56 45 35.5 5.8 9 36 20 63 42 63 66.7 50 44.5 40 44.5 7 7.1 11 9.5 40 52.4 23 28.6 (71)

48 71 76.2 56 54 45 34.9 7 8.7 14 12.7 45 63.5 30 38.1 (80)

56 80 88.9 62.5 61.9 50 38.1 10 8.7 19 15.9 50 69.9 40 47.6 (90S)

143T 90 88.9 70 69.8 50 50.8 10 8.7 24 22.2 56 57.2 50 57.2 (90L) 145T 90 88.9 70 69.8 62.5 63.5 10 8.7 24 22.2 56 57.2 50 57.2 (100L) † 100 80 70 12 28 63 60 (112S)

182T 112 114.3 95 95.2 57 57.2 12 10.7 28 28 70 70 60 69.9 (112M)

184T 112 114.3 95 95.2 70 68.2 12 10.7 28 28 70 70 60 69.9

IEC and NEMA DIMENSIONS AND FRAME COMPARISONS (mm) (IEC) NEMA

(H)

(A)

(B)

(K)

(D)

(E) N-W (132S)

213T 132 133.4 108 108 70 69.8 12 10.7 38 34.9 89 89 80 85.7 (132M)

215T 132 133.4 108 108 89 88.8 12 10.7 38 34.9 89 89 80 85.7 (160M)*

254T 160 158.8 127 127 105 104.8 15 13.5 42 41.3 108 108 110 101.6 (160L)*

256T 160 158.8 127 127 127 127 15 13.5 42 41.3 108 108 110 101.6 (180M)*

284T 180 177.8 139.5 139.8 120.5 120.2 15 13.5 48 47.6 121 121 110 117.5 (180L)*

286T 180 177.8 139.5 139.8 139.5 139.8 15 13.5 48 47.6 121 121 110 117.5 (200M)*

324T 180 203.3 159 158.8 133.5 133.4 19 16.7 55 54 133 133 110 133.4 (200L)*

326T 200 203.2 159 158.8 152.5 152.4 19 16.7 55 54 133 133 110 133.4 * Shaft dimensions of these motors may vary among manufacturers. † No NEMA equal.

Close-Coupled Pump Shaft Dimensions

Frame Designations

Dimensions (in.) U EL EM EN EQ ET AH AJ AK BD BF 143JM/145JM 7⁄8 1 5⁄32 1 3⁄8-16 x 3⁄4 5⁄8 2 7⁄8 4 1⁄4 5 7⁄8 4 1⁄2 6 5⁄8 3⁄8-16 143JP/145JP 7⁄8 1 5⁄32 1 3⁄8-16 x 3⁄4 1 9⁄16 5 15⁄16 7 5⁄16 5 7⁄8 4 1⁄2 6 5⁄8 3⁄8-16 182JM/184JM 7⁄8 1 1⁄4 1 3⁄8-16 x 3⁄4 5⁄8 2 7⁄8 4 1⁄4 5 7⁄8 4 1⁄2 6 5⁄8 3⁄8-16 182JP/184JP 7⁄8 1 1⁄4 1 3⁄8-16 x 3⁄4 1 9⁄16 5 15⁄16 7 5⁄16 5 7⁄8 4 1⁄2 6 5⁄8 3⁄8-16 213JM/215JM 7⁄8 1 1⁄4 1 3⁄8-16 x 3⁄4 5⁄8 2 7⁄8 4 1⁄4 7 1⁄4 8 1⁄2 9 1⁄2-13 213JP/215JP 1 1⁄4 1 3⁄4 1 3⁄8 1⁄2-13 x 1 2 3⁄8 5 7⁄8 8 1⁄8 7 1⁄4 8 1⁄2 9 1⁄2-13 254JM/256JM 1 1⁄4 1 3⁄4 1 3⁄8 1⁄2-13 x 1 5⁄8 3 5 1⁄4 7 1⁄4 8 1⁄2 9 1⁄4 1⁄2-13 254JP/256JP 1 1⁄4 1 3⁄4 1 3⁄8 1⁄2-13 x 1 2 3⁄8 5 7⁄8 8 1⁄8 7 1⁄4 8 1⁄2 9 1⁄2-13 284JM/286JM 1 1⁄4 1 3⁄4 1 3⁄8 1⁄2-13 x 1 5⁄8 3 5 1⁄4 11 12 1⁄2 13 7⁄8 5⁄8-11 284JP/286JP 1 1⁄4 1 3⁄4 1 3⁄8 1⁄2-13 x 1 2 3⁄8 5 7⁄8 8 1⁄8 11 12 1⁄2 13 7⁄8 5⁄8-11

Common Enclosure Ratings IP 22 - Open Dripproof Motors IP 44 or 54 - Totally Enclosed (NEMA 12) IP 45 - Weatherproof Motors IP 55 - Washdown-Duty Motors

Common Motor Applications IC 01 - NEMA Standard Open Motors IC 40 (IC 410) - Totally Enclosed, Nonvented IC 41 (IC 411) - Totally Enclosed, Fan-cooled IC 48 (IC 418) - Totally Enclosed, Air Over

Efficiency Ratings IEC uses the following ratings to designate motor efficiencies: IE2 = Meets Epact levels IE3 = Meets NEMA Premium IE4 = Exceeds NEMA Premium

2015 Energy Conservation Standards For Small Electric Motors Energy efficiency is becoming more important for electric motors used in industrial, commercial, and residential applications. The U.S. Department of Energy (DOE) has established new standards for certain types of small electric motors that will become effective on March 9th, 2015 (March 9th, 2017 for motors that require listing or certification). The motors governed under the small motor ruling include NEMA General Purpose two digit frames 42, 48, and 56, open construction, continuous duty, 1/4 horsepower up through 3 horsepower in 3-phase, capacitor start induction run and capacitor start capacitor run designs. The small motor rule also includes metric designs built in IEC frames 63, 71, or 80, and kilowatt ranges from .18 kW to 2.2 kW. See tables for standard efficiency levels.

Table I.1—Standard Levels for 3-Phase Small Electric Motors

HP/kW

6-Pole (1200 RPM)

4-Pole (1800 RPM)

2-Pole (3600 RPM) 0.25/0.18 67.5 69.5 65.6 0.33/0.25 71.4 73.4 69.5 0.5/0.37 75.3 78.2 73.4 0.75/0.55 81.7 81.1 76.8 1/0.75 82.5 83.5 77.0 1.5/1.1 83.8 86.5 84.0 2/1.5 — 86.5 85.5 3/2.2 — 86.9 85.5

Table I.2—Standard Levels for Capacitor-Start Induction- Run and Capacitor-Start Capacitor-Run Small Electric Motors HP/kW 6-Pole (1200 RPM) 4-Pole (1800 RPM) 2-Pole (3600 RPM) 0.25/0.18 62.2 68.5 66.6 0.33/0.25 66.6 72.4 70.5 0.5/0.37 76.2 76.2 72.4 0.75/0.55 80.2 81.8 76.2 1/0.75 81.1 82.6 80.4 1.5/1.1 — 83.8 81.5 2/1.5 — 84.5 82.9 3/2.2 — — 84.1